New observations onMonotosporella rhizoidea

Monotosporella rhizoidea is described, and illustrated with ligh and scanning electron micrographs, from submerged wood in Hong Kong. Our collection differs from the protologue, in having smaller conidia and longer condidiophores. The formation of multiple lobes which swell downwards over the conidiophore or existing conidiogenous cells is an unusual feature inMonotosporella. A synopsis and a key, as well as diagrammatic representations of the species ofMonotosporella are provided.